A CHP (or cogeneration) unit generates the electricity where it is needed and additionally gives the opportunity to use the excess heat for heating and hot water. This can make CHP more than twice as efficient as conventional power stations - giving you cost savings, reducing emissions and carbon footprint.
How does a Cogen system work?
The cogeneration system is built around a prime mover, which could be a reciprocating engine, turbine or fuel cells. This prime mover, coupled with an alternator where applicable, converts the chemical energy stored in the fuel to electrical energy. ... This process of producing electricity also creates heat.
What does a cogen plant do?
A cogeneration plant is like CHP in the sense that it also generates electricity and produces heat. Cogen technology differs, however, from CHP in that it produces electricity from a simple cycle gas turbine. The gas turbine exhaust energy is then used to produce steam.